public function testChangeTimeZone()
{
$timezone1 = TimeZone::parse('UTC');
$timezone2 = TimeZone::parse('America/Los_Angeles');
$datetime1 = ZonedDateTime::ofInstant(Instant::of(1000000000), $timezone1);
$datetime2 = $datetime1->withTimeZoneSameInstant($timezone2);
$this->assertSame($timezone1, $datetime1->getTimezone());
$this->assertSame($timezone2, $datetime2->getTimezone());
$this->assertSame('2001-09-08T18:46:40', (string) $datetime2->getDateTime());
$datetime2 = $datetime1->withTimeZoneSameLocal($timezone2);
$this->assertSame($timezone1, $datetime1->getTimezone());
$this->assertSame($timezone2, $datetime2->getTimezone());
$this->assertSame('2001-09-09T01:46:40', (string) $datetime2->getDateTime());
}
/**
* @return string
*/
public function __toString()
{
return (string) ZonedDateTime::ofInstant($this, TimeZone::utc());
}
/**
* Returns a copy of this ZonedDateTime with the specified Duration added.
*
* @param Duration $duration
*
* @return ZonedDateTime
*/
public function plusDuration(Duration $duration)
{
return ZonedDateTime::ofInstant($this->getInstant()->plus($duration), $this->timeZone);
}
